No subject


Thu May 8 09:17:00 PDT 2014


You can expect reasonable energy delivery (approx 40% efficiency) up to 10 C
(20 F) above ambient temperature.  This assumes that the building surfaces
are oriented toward the sun.  To get higher temperatures you would need
glazed collectors.  Might not be a bad idea for free heat and would reduce
the cooling load slightly.  I would hate to have to service clogged or
broken pipes that are embedded in concrete.  Use cross linked poly ethylene
pipe with an oxygen barrier.

-----Original Message-----
From: postman at gard.com [mailto:postman at gard.com] On Behalf Of Catherine
MacCallum
Sent: Thursday, July 07, 2005 4:19 PM
To: BLDG-SIM at gard.com
Subject: [BLDG-SIM] Solar hot water heat collectors integrated into the
envelope?

Does anyone have any experience using pipes integrated into the building
envelope as solar collectors?  

I am involved in a project in Mexico where the design team would like
to incorporate solar hot water heating as much as possible but don't
like the look of standard commercial solar collectors.  As an
alternative, they are interested in embedding pipes in the roof surface.
 The pipes would be covered in a thin layer of concrete (or possibly
copper roofing).  This is obviously not the most efficient system but
the site receives a lot of sun and there is a large roof area available.
 

Has anyone heard of similar installations?  Any suggestions based on
past experience?  Any feedback would be greatly appreciated.

Thanks,

Catherine


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